Home / 14,345.21-19,796.98-7,971.76

Finding the Fourth Proportional to 14,345.21, 19,796.98 and 7,971.76

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Solution

The fourth proportional to 14,345.21, 19,796.98 and 7,971.76 is: 11,001.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.21 : 19,796.98 = 7,971.76 : x
  2. Step 2: Convert to fraction form
    14,345.21/19,796.98 = 7,971.76/x
  3. Step 3: Cross multiply
    14,345.21x = 19,796.98 × 7,971.76
  4. Step 4: Simplify right side
    14,345.21x = 157,816,773.28
  5. Step 5: Solve for x
    x = 157,816,773.28/14,345.21
  6. Step 6: Final answer
    x = 11,001.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.